private function incrementMaxPointsBySkill(ilAssQuestionSkillAssignment $assignment) { $key = $this->buildSkillKey($assignment->getSkillBaseId(), $assignment->getSkillTrefId()); if (!isset($this->maxPointsBySkill[$key])) { $this->maxPointsBySkill[$key] = 0; } $this->maxPointsBySkill[$key] += $assignment->getMaxSkillPoints(); }